Buick Regal TourX (2018) is 346 kg (763 lbs) lighter than Ford Flex (2020).
Ford Flex (2020) is 139 mm (5.47 inch) longer, 394 mm (15.51 inch) wider, 243 mm (9.57 inch) higher and has 623 liters (22.00 ft3) bigger cargo space than Buick Regal TourX (2018).